In a computer, where is silver and copper? Where is gold?

What do these precious metals do in a computer?

How are precious metals retrieved from an old computer?

How is the gold separated from a microprocessor?

What does this gold become?

Why is the metal in other computer parts harder to recycle?

How do positive and negative charges help to recycle the metal?

How are gold salts created?

Are all of the metals used again in computers? What else could these metals be used for?

What do satellites and the space shuttle use gold for?

energy and particles

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.

1)

i))the process of preparing food by green plants in the presence of sunlight is called photosynthesis.

ii) leaf is the site for photosynthesis.

iii) it takes place as,

6h2o+6co2=c6h12o6+602